gnutls_hmac_copy3
Api function
Usage
#include <gnutls/crypto.h>
gnutls_hmac_hd_t gnutls_hmac_copy(gnutls_hmac_hd_t handle);
Arguments
- gnutls_hmac_hd_t handle
-
is a
gnutls_hmac_hd_ttype
Overview
This function will create a copy of MAC context, containing all its current state. Copying contexts for MACs registered using gnutls_crypto_register_mac() is not supported and will always result in an error. In addition to that, some of the MAC implementations do not support this operation. Applications should check the return value and provide a proper fallback.
Returns
new MAC context or NULL in case of an error.
Since
3.6.9
Releases
4 releases since Debian 11 (Bullseye); the text changed 3 times.